<?php
    function query($sql)
    {
        $connection = mysql_connect('localhost','root','vertrigo');
        mysql_select_db('tdc');
        $ketqua = mysql_query($sql);
        $data = array();
        while($row = mysql_fetch_assoc($ketqua)){
            $data[] = $row;
                   
        }return $data;
    }
?>